I think we could probably all agree (well, most of us) that there has been an increasing level of frustration (and sometimes anger) under the Obama administration. It's what got the House and Senate back in GOP hands. If Clinton is victorious this fall, those who were frustrated and angry will likely become apoplectic. That anger is only going to increase under Clinton, and we could see people metaphorically foaming at the mouth over what she tries to implement. A Trump victory would undo much of this. Any frustration from the right would be intraparty, not directed solely at the Democrats. Any internal squabbling will only go so far. The Democrats will be upset, of course, but they haven't had 8 years of frustration. They can make it. As long as Trump doesn't go completely off the rails, a Trump administration may be the better option for national unity (as crazy as that sounds).